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Brian McLogan
Using cross product to verify a proportion
π Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Flipping Physics
Moments of Inertia of Rigid Objects with Shape
The moment of inertia of a system of particles equation is used to estimate six different moments of inertia of rigid objects with constant density.
Curated Video
Generating Equivalent Fractions Using a Grid Model
In this video, students learn how to find equivalent fractions with denominators of 10 and 100 using a grid model. The teacher explains the concept of equivalent fractions and emphasizes that the size of the hole remains the same,...
Brian McLogan
Dividing rational expressions
Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the...
Brian McLogan
Master How to Verify a trigonometric identity using half angle formulas
Master How to Verify a trigonometric identity using half angle formulas
Brian McLogan
Find the slope between two points with fractions
π Learn how to find the slope between two points. The slope of a line is the steepness of the line. The horizontal line has a zero slope while the vertical line has an undefined slope. To determine the slope of a line passing through two...
KnowMo
Algebraic Fractions: Multiplication and Division
This video is a lecture on how to multiply and divide algebraic fractions. The speaker explains that algebraic fractions are fractions that contain algebraic terms and are treated similar to numeric fractions. The video includes multiple...
Brian McLogan
ACT SAT Prep Determine the value of x by adding multiple fractions
ACT SAT Prep Determine the value of x by adding multiple fractions
Brian McLogan
How to graph a linear inequality by rewriting the inequality in slope intercept form
π Learn how to graph linear inequalities written in standard form. Linear inequalities are graphed the same way as linear equations, the only difference being that one side of the line that satisfies the inequality is shaded. Also broken...
Physics Girl
Could you replace your eye with a camera?
How does the eye compare to a camera? How do they work, and will camera technology ever get to the point where you would want to replace your eyeball with a camera?
Curated Video
Recognizing Equivalent Fractions Using Fraction Strips
In this video, the teacher explains how fractions can be equivalent to whole numbers using fraction strips. The teacher demonstrates with examples, showing how fractions like 1/4 and 2/8 can represent the same amount of space. The lesson...
Curated Video
Representing Fractions as Unit Fractions Using an Area Model
In this lesson, students learn how to represent fractions as a sum of unit fractions using an area model. They are taught that the denominator of a fraction represents the total number of parts in the whole, while the numerator...
Brian McLogan
Subtracting a rational expression from a whole number
Learn how to add/subtract rational expressions. When adding or subtracting two or more rational expressions with common denominators, we add or subtract only the numerator while we keep the denominator the same. We will then simplify our...
Brian McLogan
Learning how to find the sum of an infinite geometric series
π Learn how to find the geometric sum of a series. A series is the sum of the terms of a sequence. A geometric series is the sum of the terms of a geometric sequence. The formula for the sum of n terms of a geometric sequence is given by...
Brian McLogan
Graphing logarithmic equations
π Learn how to graph logarithmic functions. The logarithmic function is the inverse of the exponential function. To graph a logarithmic function, it is usually very useful to make the table of values of the function. This is done by...
Curated Video
GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Ratios - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...
Curated Video
GCSE Secondary Maths Age 13-17 - Probability & Statistics: Probability - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...
Curated Video
Converting Fractions to Decimals Using Long Division
In this video, the teacher explains how to convert fractions into decimals using long division. They provide examples of fractions like 3/4 and 2/5 and demonstrate the step-by-step process of converting them into decimals.
Brian McLogan
How to find equivalent fractions and understanding what they are
π Learn how to understand the concept of fractions using parts of a whole. Fractions are parts of a whole and this concept can be illustrated using bars and circles. This concept can also be extended to understand equivalent fractions....
KnowMo
Dividing Fractions: How to Multiply by the Reciprocal
This video is a tutorial on how to divide fractions. The instructor explains the one rule to follow, which is to multiply by the reciprocal of the second fraction. The process involves converting mixed numbers into improper fractions,...
Brian McLogan
Prove an identity by rationalizing the denominator
π Learn how to verify rational trigonometric identities involving the addition and subtraction of terms. To verify trigonometric expression means to verify that the term on the left-hand side of the equality sign is equal to the term on...
Brian McLogan
Apply zero product property to solve a factored quadratic equation
πLearn how to solve a quadratic equation using the zero product property. When a quadratic equation has been factored or is given in factored form, we can solve the quadratic equation by applying the zero product property. The zero...
Brian McLogan
Graphing a quadratic function in standard form
π Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
Learn how to graph a linear inequality
π Learn how to graph linear inequalities written in slope-intercept form. Linear inequalities are graphed the same way as linear equations, the only difference being that one side of the line that satisfies the inequality is shaded. Also...